# Peter Thomas Roth Even Smoother Glycolic Retinol Resurfacing Serum for combination skin

**Lovi Fit: High fit for combination skin.**
Combination Skin Fit: Superior · Effectiveness: High · Safety: Excellent.

Page: https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for Australia.

Brand: [Peter Thomas Roth](https://lovi.care/skincare/au/brands/peter-thomas-roth)
Category: [Serums and treatments](https://lovi.care/skincare/au/best/serums)

This fit is calculated for the concerns frequently associated with combination skin: an oily T-zone, enlarged pores, and dry cheeks. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

A great choice for combination skin; a few serums fit it even better.

## Why this fit

- Excellent suitability for your combination skin, as glycolic acid and retinol work synergistically to exfoliate and promote cell turnover, while niacinamide and ceramides support your skin barrier and help regulate oil production.
- The serum offers moderate exfoliation to address oily shine, with ingredients like jojoba seed oil and squalane providing nourishment without clogging pores.
- The safety profile is excellent, with no risks of irritation due to the absence of harsh ingredients and the inclusion of soothing components like allantoin and panthenol.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/oily-skin): High
- [Dry skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/dry-skin): Average
- [Combination skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin): High (this page)
- [Sensitive skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/sensitive-skin): High
- [Acne-prone skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/acne-prone-skin): High
- [Skin with dark spots](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/dark-spots): High
- [Mature skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/mature-skin): High
- [Dry sensitive skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/dry-sensitive-skin): Average
- [Oily acne-prone skin](https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/oily-acne-prone-skin): High

## Key ingredients

Glycolic Acid Complex, Time-Released Microencapsulated Retinol, Niacinamide, Squalane, Ascorbic Acid

## What the research says

- Topical 0.4% retinol significantly increased epidermal thickness, dermal vascularity, and extracellular matrix production by stimulating keratinocyte proliferation, endothelial cell proliferation, and fibroblast activation in naturally aged human skin compared to vehicle. ([International Journal of Cosmetic Science, 2017](https://pubmed.ncbi.nlm.nih.gov/27261203/))
- Clay jojoba oil facial masks reduced total skin lesions by a mean of 54% after 6 weeks in 133 participants with acne-prone, lesioned skin and mild acne compared to baseline. ([Forschende Komplementarmedizin, 2012](https://pubmed.ncbi.nlm.nih.gov/22585103/))
- A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment. ([Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/))
- Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment. ([American Journal of Clinical Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12113650/))
- Repeated short-contact 70% glycolic acid peels provided superior results in atrophic acne scars compared to daily low-strength glycolic acid cream or placebo in 58 women over 24 weeks. ([International Journal of Dermatology, 2000](https://pubmed.ncbi.nlm.nih.gov/11095203/))
- Serial glycolic acid peels combined with a modified Kligman formula significantly reduced facial PIH severity in Indian patients compared to the modified Kligman formula alone. ([Dermatologic Surgery, 2017](https://pubmed.ncbi.nlm.nih.gov/28114204/))
- Topical bakuchiol 0.5% applied twice daily compared with retinol 0.5% applied daily significantly decreased wrinkle surface area and hyperpigmentation with no statistical difference between the compounds in 44 patients over 12 weeks, while retinol users reported more facial skin scaling and stinging. ([The British Journal of Dermatology, 2019](https://pubmed.ncbi.nlm.nih.gov/29947134/))
- Silicone particles encapsulating retinol increased its half-life by 9-fold and yielded 12-23% lower skin irritation in human subjects compared to Microsponge particles while maintaining biological activity. ([Journal of Controlled Release, 2018](https://pubmed.ncbi.nlm.nih.gov/29604311/))
- Topical stabilized retinol treatment induced HAS gene expression and increased hyaluronic acid production in human skin in vitro, ex vivo, and in vivo compared to vehicle. ([Archives of Dermatological Research, 2017](https://pubmed.ncbi.nlm.nih.gov/28247017/))
- Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin. ([Journal of Cosmetic Dermatology, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women. ([The Journal of Investigative Dermatology, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging. ([Dermatologic Surgery, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- Squalane at 0.005-0.015% counteracts UVA-induced oxidative stress, inflammation, and collagen metabolism inhibition while stimulating fibroblast migration in human dermal fibroblasts. ([Molecules, 2025](https://pubmed.ncbi.nlm.nih.gov/40363772/))
- Plant-derived squalane protected human dermal fibroblasts against UVA-induced damage by counteracting ROS formation, suppressing apoptosis-related proteins p53, caspase-3, caspase-9, and PARP, and restoring the pro-survival p-Akt/mTOR pathway. ([Antioxidants, 2025](https://pubmed.ncbi.nlm.nih.gov/40722956/))
- Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers. ([Experimental Dermatology, 2003](https://pubmed.ncbi.nlm.nih.gov/12823436/))
- Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation. ([Journal of Periodontology, 2009](https://pubmed.ncbi.nlm.nih.gov/19186973/))
- Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream. ([Journal of Cosmetic Dermatology, 2022](https://pubmed.ncbi.nlm.nih.gov/34910367/))

## What reviewers say

Users report this serum effectively resurfaces skin, leading to smoother texture and reduced fine lines. Many praise its hydrating qualities and ability to even skin tone. A minority of users experienced stickiness upon application or purging breakouts.

- Liked: Smoothes skin texture (often mentioned)
- Liked: Evens skin tone (sometimes noted)
- Liked: Non-drying and gentle (sometimes noted)
- Liked: Reduces fine lines (sometimes noted)
- Disliked: Sticky after application (sometimes noted)
- Disliked: Caused breakouts (rarely noted)
- Disliked: No visible results (rarely noted)
- Disliked: Unpleasant smell (rarely noted)

## How to apply

- Use your serum as part of your PM routine. Start using it 3 times a week and move to daily use if your skin likes it.
- Apply the serum after cleansing and toner, and right before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and wait a minute ⏳for it to soak in.
- Apply the serum on clean and dry skin since your skin is not sensitive.
- Always do a patch test before using the serum for the first time, and avoid the eye area .
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### What makes Peter Thomas Roth Even Smoother Glycolic Retinol Resurfacing Serum a great fit for combination skin?

This serum is a great fit for your combination skin because glycolic acid and retinol help smooth the surface and promote cell turnover, while niacinamide and ceramides support your skin barrier and help balance oil. It also features nourishing oils that hydrate without clogging pores, alongside soothing ingredients that help keep your skin calm and comfortable.
Sources: [International Journal of Cosmetic Science, 2017](https://pubmed.ncbi.nlm.nih.gov/27261203/), [Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/)

### Which ingredients make this serum a good fit for combination skin?

Glycolic acid and retinol help smooth combination skin by encouraging fresh skin to surface, while niacinamide and ceramides help keep your skin barrier strong and your oily shine in check. Squalane and jojoba seed oil add light nourishment that is unlikely to clog your pores, and soothing ingredients like panthenol and allantoin keep your skin calm.
Sources: [International Journal of Cosmetic Science, 2017](https://pubmed.ncbi.nlm.nih.gov/27261203/), [Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/)

### What does Glycolic Acid do for combination skin?

Glycolic acid helps smooth and brighten combination skin by gently loosening dead skin cells on the surface. It may increase skin turnover, so a product of this type needs a gentle formula and good moisturizers to keep dry areas comfortable while balancing oilier zones.
Sources: [Acta Dermato-venereologica, 1995](https://pubmed.ncbi.nlm.nih.gov/8651024/), [Archives of Dermatological Research, 1997](https://pubmed.ncbi.nlm.nih.gov/9248619/)

### What does Retinol do for combination skin?

Retinol helps smooth out fine lines, improve uneven tone, and keep pores clear for combination skin. It works best when used gradually at night to let your skin adjust while minimizing dryness.
Sources: [Dermatology and Therapy, 2023](https://pubmed.ncbi.nlm.nih.gov/37615835/), [International Journal of Cosmetic Science, 2008](https://pubmed.ncbi.nlm.nih.gov/18452434/)

### Where does this serum go in a skincare routine for combination skin?

This serum goes in your evening routine after cleansing and before moisturizing. Lovi routines put treatments in the evening for simplicity and extra safety around sun exposure.

### Can I use this serum with BHA, and in what order?

Using this serum with BHA is not recommended because combining strong exfoliating acids and retinol may easily cause irritation and dryness on your combination skin. It is best to use them on alternate nights to keep your skin smooth and calm.

### How often should I use this serum?

Start by using this treatment once a week in the evening, and if your skin feels comfortable and you see good results, you can carefully use it more often. This serum has an excellent safety profile, with soothing components like allantoin and panthenol that help keep irritation unlikely.
Sources: [Facial Plastic Surgery, 2014](https://pubmed.ncbi.nlm.nih.gov/24488631/), [Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/)

### Can this serum clog pores, cause breakouts or purging for combination skin?

This serum is unlikely to cause breakouts on combination skin because it includes nourishing ingredients like squalane and jojoba seed oil that provide moisture without clogging pores. The formula features soothing components like allantoin and panthenol, creating an excellent safety profile with a very low risk of irritation.
Sources: [Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/40613435/), [American Journal of Clinical Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12113650/)

### Is this serum fragrance-free and alcohol-free?

It has no fragrance and contains drying alcohol (alcohol).

## Alternatives for combination skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/au/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/combination-skin) — Superior fit — A$16.95 at Amazon
- [Neogen Dermalogy Real Niacinamide 15% Firming Serum](https://lovi.care/skincare/au/p/neogen-dermalogy/real-niacinamide-15-firming-serum/for/combination-skin) — Superior fit — A$52.32 at Amazon
- [Augustinus Bader The Serum](https://lovi.care/skincare/au/p/augustinus-bader/the-serum/for/combination-skin) — Superior fit — A$639.95 at Amazon

## Pairs well with

- Cleanser: [Fresh Soy Face Cleanser](https://lovi.care/skincare/au/p/fresh/soy-face-cleanser/for/combination-skin) — Superior fit — A$73.61 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/au/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/combination-skin) — Superior fit — A$42.00 at Amazon
- Moisturizer: [COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap](https://lovi.care/skincare/au/p/cosrx/oil-free-ultra-moisturizing-lotion-with-birch-sap/for/combination-skin) — Superior fit — A$22.99 at Amazon

## Where to buy

No store in Australia has a checked price for this product, so the page shows none.

## Ingredients

Water, Glycolic Acid, Propanediol, Sodium Hydroxide, Jojoba Seed Oil, Ethylhexyl Olivate, Polyglyceryl-2 Distearate, C9-12 Alkane, Arachidyl Alcohol, Zea Mays Starch, Glyceryl Stearate, Niacinamide, Tocopherol, Adansonia Digitata Seed Oil, Pumpkin Seed Oil, Retinol, Collagen, Adenosine, Squalane, Allantoin, Ascorbic Acid, Panthenol, Lecithin, Ceramide Np, Volcanic Soil, Pullulan, Sodium Phytate, Arachidyl Glucoside, Amylopectin, Polysorbate 20, 1,2-Hexanediol, Silica, Sodium Hyaluronate, Leuconostoc Radish Root Ferment Filtrate, Potassium Sorbate, Sclerotium Gum, Coco-Caprylate Caprate, Sodium Benzoate, Xanthan Gum, Lysolecithin, Pentylene Glycol, Potassium Phosphate, Ethylhexylglycerin, Behenyl Alcohol, Alcohol, Phenoxyethanol, Mica Ci 77019
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- United Kingdom: https://lovi.care/skincare/uk/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Ireland: https://lovi.care/skincare/ie/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Germany: https://lovi.care/skincare/de/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- France: https://lovi.care/skincare/fr/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Italy: https://lovi.care/skincare/it/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Netherlands: https://lovi.care/skincare/nl/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Spain: https://lovi.care/skincare/es/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Canada: https://lovi.care/skincare/ca/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Australia: https://lovi.care/skincare/au/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin (this page)
- Singapore: https://lovi.care/skincare/sg/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/peter-thomas-roth/even-smoother-glycolic-retinol-resurfacing-serum/for/combination-skin